// "Replace IntStream.range().mapToDouble() with Arrays.stream(numbers)" "true" import java.util.ArrayList; import java.util.List; import java.util.stream.IntStream; public class Test extends ArrayList<String> { public void test(List<List<String>> list) { double[] numbers = {1,2,3,4,5}; double[] doubled = IntStream.range(0, numbers.length).ma<caret>pToDouble(idx -> numbers[idx]*2).toArray(); } }